Gaea is a worsted 4ply yarn made from 21.5 micron Certified Organic Merino from Argentina. It’s combed in Germany and spun in the U.S., both mills certified organic. I love the whole world aspect of this yarn. It has a lovely hand. So much so that I didn’t want to put it down when swatching it for gauge. It’s as much of a dream to dye as it is to knit. This is the mills bulky version. What we here think of as a worsted.